31306322530140 has 96 divisors (see below), whose sum is σ = 103411852529664. Its totient is φ = 6924900833280.

The previous prime is 31306322529973. The next prime is 31306322530237. The reversal of 31306322530140 is 4103522360313.

It is a super-2 number, since 2×31306322530140² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1202226709 + ... + 1202252748.

It is an arithmetic number, because the mean of its divisors is an integer number (1077206797184).

Almost surely, 2^{31306322530140} is an apocalyptic number.

31306322530140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31306322530140 is an abundant number, since it is smaller than the sum of its proper divisors (72105529999524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31306322530140 is a wasteful number, since it uses less digits than its factorization.

31306322530140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404479507 (or 2404479505 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 31306322530140 its reverse (4103522360313), we get a palindrome (35409844890453).

The spelling of 31306322530140 in words is "thirty-one trillion, three hundred six billion, three hundred twenty-two million, five hundred thirty thousand, one hundred forty".